Refrigerating apparatus



p 1933. c. F. HENNEY 2,130,994

REFRIGERATING APPARATUS Filed April 18, 1934 Patented Sept. 20, 1938 UNITED STATES 2,130,994 REFRIGERATING APPARATUS Charles F. Henney, D

corporation of ayton, Ohio, assignor to General Motors Corporation, Dayton,

Delaware Ohio, at

Application April 18, 1934, Serial a... 721,173

4Claims.

This invention relates to refrigeration and more particularly to the conditioning of air for passenger cars.

It is an object of this invention to provide an improved mode of conditioning air for the passenger space of a car in a simplified and efllcient manner.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawing, wherein a preferred form of the present invention is clearly shown.

In the drawing:

Fig. 1 is a diagrammatic representation of an apparatus embodying the features of my invention; and v Fig. 2 is a diagrammatic representation of a plane view of a car embodying features of my invention.

A car be conditioned is provided with a refrigerating system of a type diagrammatically shown in Fig. 1. The space to be conditioned generally includes rows of seats I2 along the longitudinal edges of therelatively long compartment Ii. Intermediate the ends of the compartment one or more cooling means l3 are placed in such a manher that oppositely directed and transversely spaced streams of air are blown through the cooling means in the upper part of the space or compartment and thus insures the conditioning of the air throughout the space.

Referring now more particularly to Fig. 1, the

suction line 20 and the liquid line 2| with-the evaporator. The compressor i1 preferably is driven by a motor 22. oppositely directed blowers 23 and 24 are placed sides ofthe cooling means l3 and are transversely disposed with automatically conof refrigerant in the Such means may be I having a space or compartment H toor through' proper relays. In addition,- the liquid refrigerant line 2| is provided with branches 2|a and 2|b having automatic expansion valves Hand 28 which control the entrance of refrigerant into the evaporators i4 and I respectively. The branches 20a and 20b of the suction line are in thermal contact with thermostatic bulbs 29 and '30 which throttle the valves Hand 28 respectivemight be adopted, all coming of the claims which follow.

What is claimed is as follows: 1. A car having a space to be conditioned, a plurality of cooling means intermediate the ends of said space and located in the upper part of the space, oppositely directed blowers transversely disposed to blow air over said cooling means in opposite and transversely disposed directions in of said space, a common support for said means,

oppositely directed blowers transversely disposed to blow air in opposite and transversely disposed directions, the arrangement of said evaporating means and blowers being such that air circulated by said blowers flows over said evaporators into independently controlling the evaporation of refri erant in said evaporating means, and means for controlling the starting and stopping of the flow of refrigerant in said evaporating means.

3. A car having a relatively long and narrow space to be conditioned, a plurality of cooling means arrangedside by side intermediate the ends of the space and located in the upper part of the space, oppositely directed blowers transversely disposed to blow air over said cooling means in opposite and transversely disposed directions in the upper part of the space, the arrangement of said blowers and cooling means being such that air circulated flows in its cooled condition in the upper part of the space, means responsive to refrigeration conditions for independently controlling the cooling effect of said cooling means, and separate means for jointly controlling the efieot of said cooling means in accordance with temperature conditions in said space. 4

4. A car having a space to be conditioned, evaporating means space and located in the upper part of the space, oppositely directed blowers transversely disposed to blow air in opposite and transversely disposed directions in the upper part of said space, the arrangement of said evaporating means and blowers being suchthat air circulated by said blowers flows in its cooled condition in the upper part of said space, means for controlling the evaporation of refrigerant in said evaporating means in accordance with air conditions in said space, and means for balancing the load between said evaporating means.

CHARLES F. ENNEY.

intermediate the ends of said 

